Seadoo Gtx 787 Engine Manual
Posted By admin On 07.10.19Seadoo gtx 787 engine manual - alternativesystems - seadoo gtx 787 engine manual find seadoo gtx in canada visit kijiji classifieds to buy sell or trade almost.
Personally not owning 787 engine but being familiar with longevity of 2-stroke engines on what I've read, keep it as stock as possible. The best thing is work on jetting/airflow/exhaust. All three will allow less restriction and not affect internals.
Anything outside is looking for more tear downs and at least for me I like reliable. So neither in your question but closest thing to stock would be preferred. Some say OEM piston but I would upgrade connecting rod if need be.
Edit: looked up both and i would think the Platinum pistons b/c of the reducing friction. Also saw your in a rebuild yourself. If you need the top end redone fullbore has it where you send in cyl heads and they do it for you for 295 Platinum kit or 10 bucks less w/o if your diy??
Right, thats what i quoted in my post. Someone mentioned fullbore, so i was chiming in to get an opinion on the two different top end rebuild services they offer. It does not look like they have OEM pistons. Only the WSM Platinum or the Pro X. I asked if it would be better to go with their WSM Platinum top end rebuild for 295, or their Pro X top end rebuild for 375. I was inquiring if its really worth another 80 bucks to get the Pro X pistons over the WSM Platinum pistons I apologize for being unclear in my last post. Right, thats what i quoted in my post.
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Someone mentioned fullbore, so i was chiming in to get an opinion on the two different top end rebuild services they offer. It does not look like they have OEM pistons. Only the WSM Platinum or the Pro X. I asked if it would be better to go with their WSM Platinum top end rebuild for 295, or their Pro X top end rebuild for 375. I was inquiring if its really worth another 80 bucks to get the Pro X pistons over the WSM Platinum pistons I apologize for being unclear in my last post.
The 787 is my fav motor. Right now, I have 4 of them in my shop. This motor is a very fogiving motor, even if neglected. Before you elect to replace it, if your capable, you should see if there is anything you can do to save the one you have.
If the motor is locked, remove the head and cylinders to see if you can turn it over by hand. If so, the upper end is in need of attention. To see if you need a cylinder replacement kit, remove the rings and put them into the cylinder, then measure the distance between the rings where they come together. Your clearance should be.013' +/-.003'. If this checks out, then check the piston to cylinder wall clearance. You should be getting about.005' to.006'. If there two measurements are good, the cylinders are good, no visible marks on the cylinder walls or pistons, then you might find just honing and rebuilding with a new gasket kit could save you big bucks.
If the compression is good but you have a 'ticking' sound, then you likely have a bearing issue in the crank. Again, you don't need to replace the motor, just do the lower end. THere is a crank exchange program with SBT. You can also do this if your having problems with your motor hydro-locking on oil from a bad seal of your rotary chamber. Good luck, but if you do decide to go SBT exchange, please follow all the guidelines they list in breaking in the new motor. And most important, if your old motor blew, you have got to find the 'ROOT CAUSE' as to why it happened, or you'll likely find a motor that won't last long.:cheers. Man.you are prob better off finding another boat and parting that one out.that is gonna get uber expensive.
And no.no other motor will transplant w/o fiberglass work and other major headaches. As far as SBT.it is a bit cheaper to do a standard w/ a 1yr warranty vs.
2 on the premium. Their prices have rose considerably in the last few years, and are only shipping air, so that is more expensive too. It used to be the best deal out there for a very well done motor, but it has gotten to the point where having your own rebuilt is about the same.and you know you have higher quality parts. SBT also uses parts that arent as durable as OEM and other aftermarket parts. If you are a normal rider with a stock machine and doesnt ride it like a rental.SBT will suffice. But if you are modding it, or beat the piss out of it all the time.rebuild with quality parts and a reputable shop. That guy in PA is a complete joke.
Stay far away from him. Pro-x pistons are a MUCH higher quality with much tighter tolerances than WSM.
It worth the $$ dough if you planing on keeping the machine a long time. If you are planning on upgrading, WSM it and sell it. The 787 is my fav motor. Right now, I have 4 of them in my shop. This motor is a very fogiving motor, even if neglected.
Before you elect to replace it, if your capable, you should see if there is anything you can do to save the one you have. If the motor is locked, remove the head and cylinders to see if you can turn it over by hand. If so, the upper end is in need of attention.
To see if you need a cylinder replacement kit, remove the rings and put them into the cylinder, then measure the distance between the rings where they come together. Your clearance should be.013' +/-.003'. If this checks out, then check the piston to cylinder wall clearance. You should be getting about.005' to.006'. If there two measurements are good, the cylinders are good, no visible marks on the cylinder walls or pistons, then you might find just honing and rebuilding with a new gasket kit could save you big bucks. If the compression is good but you have a 'ticking' sound, then you likely have a bearing issue in the crank. Again, you don't need to replace the motor, just do the lower end.
THere is a crank exchange program with SBT. You can also do this if your having problems with your motor hydro-locking on oil from a bad seal of your rotary chamber.
Seadoo Gtx 787 Engine Manual
This article may contain an excessive amount of intricate detail that may interest only a particular audience. Please help by or any relevant information, and removing excessive detail that may be against. (March 2008) The Sea-Doo GTX is a (PWC) made by of Canada.
Part of their line of watercraft, the Sea-Doo GTX has been produced since 1992. It is a three-person personal water craft with a 'luxury' ride combined with a series of engines. The performance of a Rotax marine engine with R.A.V.E. Exhaust, a three-passenger contoured seat; dual mirrors; deck pads; ski-eye; left-side forward/neutral/reverse lever; and full instrumentation. Models available over the years have included the DI, RFI and Limited. Contents.
Seadoo 787 Engine
Specifications Specifications for 1994:. Type, twin cylinder Bombardier Rotax.
97 Seadoo Gtx Manual
Displacement 650 (40 ). Bore x Stroke 82mm x 74mm. Compression ratio 6.0:1. Carburation (1) Mikuni BN 40-38. Lubrication Variable Rate Oil Injection. Propulsion System Bombardier Formula water jet pump with bronze-alloy stator vanes.
Dry Weight 576 lb (261 kg). Fuel Capacity (inc.